(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Publishing Venue

Related People

Abstract

Placing a corona shield for a transfer corona closely adjacent moving copy paper on an electrostatic copier or printer and providing venting ports through the shield on the side opposite the direction of paper movement directs contaminant-laden air away from the corona.

Country

United States

Language

English (United States)

This text was extracted from a PDF file.

At least one non-text object (such as an image or picture) has been suppressed.

This is the abbreviated version, containing approximately
52% of the total text.

Page 1 of 2

Corona Contamination Reduction

Placing a corona shield for a transfer corona closely adjacent moving copy
paper on an electrostatic copier or printer and providing venting ports through the
shield on the side opposite the direction of paper movement directs contaminant-
laden air away from the corona.

As shown in the figure, a sheet of copy paper 10 is guided onto drum 11.
The drum rotates in the direction of arrow 12 to draw the sheet 10 past the
transfer corona 14 and a Bernoulli detach manifold 15. In this environment, the
corona normally has a susceptibility to cause streaking of the copy by localized
failure to transfer. This failure to transfer is caused by contaminants on the
transfer corona case 16 and wire 17. These contaminants are attracted to the
case and wire after they enter the transfer corona in the airstream generated by
the detach system. These contaminants are toner and paper particles that are
removed from the back of the paper and from the interimage area, at detach.

A paper inlet guide configuration 18 is provided having exhaust ports that
allow the contaminant-laden airflow from the detach system to traverse the paper
past the corona wires in a direction counterflow to the normal boundary layer
airflow on the back of the paper, and vent from the corona environment on the
inlet (or leading edge) side of the corona. This inlet guide and leading edge side
of the corona is arranged so that this high velocity airflow is forced to peel from
the back of the paper at a small angle of divergence, thus minimizing any airflow
stagnation points that would otherwise allow contaminant accumulation. The
ports in this inlet guide are arranged to minimize airflow resistance and thus
maximize the number of contaminants reaching the exterior of the corona case.
The ports in this design feature walls that form dive...